Physics, asked by Rohan936, 1 year ago

the resultant of two vector of magnitude 2A and √2 A acting at angle theta is √10 A Find value of theta

Answers

Answered by tiwaavi
63

Given conditions,

Resultant (R) = √10 A

Magnitude of 2 vectors = 2A and √2 A

Using the Formula, for two vectors P and Q,

R² = P² + Q² + 2PQ Cosθ

⇒ 10A² = 4A² + 2A² + 2A × √2A Cosθ

⇒ 10A² = 6A² + 2√2 A Cosθ

∴ 2√2 A² Cosθ = 4A²

Cosθ = √2

Therefore, θ = Cos⁻¹(√2)


Hope it helps.

Answered by Gokul2003g
66

Hope it HELPS!

I have directly substituted the characters.

Attachments:
Similar questions